CN210050588U - 一种油气管道警示机构 - Google Patents
一种油气管道警示机构 Download PDFInfo
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- CN210050588U CN210050588U CN201920398664.6U CN201920398664U CN210050588U CN 210050588 U CN210050588 U CN 210050588U CN 201920398664 U CN201920398664 U CN 201920398664U CN 210050588 U CN210050588 U CN 210050588U
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CN201920398664.6U CN210050588U (zh) | 2019-03-27 | 2019-03-27 | 一种油气管道警示机构 |
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CN201920398664.6U CN210050588U (zh) | 2019-03-27 | 2019-03-27 | 一种油气管道警示机构 |
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CN210050588U true CN210050588U (zh) | 2020-02-11 |
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CN201920398664.6U Expired - Fee Related CN210050588U (zh) | 2019-03-27 | 2019-03-27 | 一种油气管道警示机构 |
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Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information | ||
CB03 | Change of inventor or designer information |
Inventor after: Hou Zhibo Inventor after: Dang Xuefeng Inventor after: Hu Zhen Inventor after: Yang Shusen Inventor after: Shan Jinzhi Inventor after: Li Gang Inventor after: Chai Denglong Inventor after: Li Tong Inventor after: Chen Guoqiao Inventor after: Wang Hui Inventor before: Hou Zhibo Inventor before: Zhang Liya Inventor before: Hu Zhen Inventor before: Yang Shusen Inventor before: Li Gang Inventor before: Chai Denglong Inventor before: Li Tong Inventor before: Chen Guoqiao |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200211 |